Classic speedboat show: More than 75 classic mahogany speedboats and hydroplanes will be displayed, both in water and ashore Saturday, 10 a.m.-5 p.m., and Sunday, 10 a.m.-4 p.m., at the Center for Wooden Boats, 1010 Valley St. Sponsored by Pacific Northwest Chapter of the Antique and Classic Boat Society. Entry: $4; $8 for families. Free parking. Information: 360-321-6404 or mloken@Whidbey.com.

Latest videos

SUNDAY

Beach naturalists: More than 100 volunteer naturalists will be on hand at participating King County beaches, 10 a.m.-2 p.m., to teach people how to enjoy the beach without harming it. They'll also talk about what sea stars eat, why barnacles stand on their heads and how moon snails lay their eggs. Participating beaches: Richmond, Carkeek Park, Golden Gardens, Constellation Park, Lincoln Park, Seahurst Park in Burien and Des Moines Beach Park. 206-296-8359.

MONDAY

Birding the hotspots of King County: East Lake Washington Audubon Society presents its monthly field trip to wherever the birds are. Meet before 9 a.m. at the north end of the Newport Hills park and ride, I-405, Exit 9. Passenger cost: $2. Information: 425-576-8805; www.elwas.org.